In the Moldy Veg team, for stinging eyes and stinky breath, Onion Scum is number one!
MAY CONTAIN TRACES OF: DIRT, MUD AND BOOTS!
Onion Scum is a crying onion with mold growing on top of his head. His eyes are crusted over with scum.
Onion Scum's collector card is Card 32 in the series. He is in a pickling jar as he faces the camera, pressing himself against the glass. He has the tagline of "Pickled Onion!" on the bottom.
Card 92 is a Touch 'N' Feel card with the same image. He also appears in the first puzzle with the same image.
- Onion Scum is similar to Smelly Onion, a Trashie from Series 3 of the Trash Pack, and Boo-Hoo Onion, a Shopkin from Season 2 of Shopkins.
- He is the first onion Grossery, with the second being Smelly Onion from Series 2.
| Series 1|
Hairy Pear / Shoccoli / Sour Pineapple / Awful Apple / Cauli-Fouler / Onion Scum / Rot Hot Chili / Mushy Mushroom / Squishy Tomato / Smashed Potato / Revolting Sultana / Puking Pumpkin